function next()

in src/Runner.js [230:239]


        function next() {
          if (!options.silent && !options.runInBand && index < numFiles) {
            process.stdout.write(
              'Sending ' +
              Math.min(chunkSize, numFiles-index) +
              ' files to free worker...\n'
            );
          }
          return files.slice(index, index += chunkSize);
        }